A survey of structural repairs carried out on 90 earthquake-damaged homes in Christchurch has found a third of the work does not comply with the building code.
The findings have just been released in Christchurch and are from a survey that looked very specifically at repairs that met three criteria: They had to be completed; they had to be exempt from needing a building consent; and they had to incorporate actual structural work.
It found that more than half of the homes had issues and that a third of them did not actually meet the building code.
Of those more serious cases nearly all (30 of the 32) relate to re-levelling work using a method called "jack and pack" where they jack a house off its foundations and put in packing to level it off.
The Ministry of Building, Innovation and Employment, which carried out the survey, says a wider survey of repairs that were exempt from building consents should now be carried out and that should target work involving the "jack and pack" system in particular..
EQC says it already has this process underway and is looking at least 3,600 homes. Based on the MBIE survey it expects to find about 1200 homes that need to be fixed again. It says that work will be done at no expense to the homeowners.
Fletchers EQR which oversaw the repair process says the contractors will be expected to meet the cost of repairs and if they are out of business, Fletchers will meet the cost itself.
Fletcher Building Chief Exectuivec Graham Darlow says he will apologise to home owners who have faced delays in getting their floors and foundations repaired.
EQC is anticipating repairs will cost around $1,000 a house, putting the overall cost at somewhere between $1.5 and $2 million.
If 1200 homes need repairs that would be less than two per cent of the full EQC repair programme which has dealt with 69,000 homes since the quakes.